@charset "UTF-8";


 body {
   width: 100%;
   background-image:url("image/senka1p.png") ;
   background-size: cover;
}

#mainContent{
   margin: 800px;
   margin-left: 200px;
   margin-right: 0;
   
}
.jump{
   margin: 100px;
   margin: 30px;
}